EXCLUSIVE: One royal expert believes that Prince Harry can stay in America despite rows over his visa even if Donald Trump is elected.

Prince Harry could be allowed to stay in America. (Image: John Nacion/Getty Images)

Prince Harry could be safe to stay in America if Donald Trump is elected, despite visa rows, it’s been claimed.

Since the duke, 40, spoke about his past drug-taking habits in his memoir Spare, people have been quick to question just how he got permission to live in the country in the first place.

The Heritage Foundation, a Washington-based think tank, believe Harry’s visa could have been treated differently to that of ordinary citizens, with some people being banned from entering the country if they are found to have been drug users presently or in the past.

The upcoming US election has also raised concerns for the duke, with Harry and candidate Donald Trump known to dislike each other.

This has left royal fans puzzled about whether Harry will be permitted to stay in the country if Trump gets elected.

However, one royal expert believes the duke will be safe as Trump, if he gets elected, will be too busy to deal with it.

Expert Richard Fitzwilliams said: “Harry was extremely foolish to discuss his drug taking in Spare both in interviews and in the memoir, available in paperback.

“However, the Sussexes have kept a relatively low profile during the Election, urging Americans to vote but not being explicit as to whom for.

“It is most unlikely that Trump would risk an embarrassing episode involving the royal family by expelling Harry if it was discovered that he had not revealed his drug taking on his Visa application.

Donald Trump is not a fan of the prince. (Image: Ian Vogler – WPA Pool/Getty Images)

“We know that Trump and the Sussexes detest each other but… it is safe to assume the Sussexes would be left in peace.”

The duke and his wife, Meghan Markle, 43, have also reportedly brought a holiday home in Portugal, leaving some questioning whether this could become a permanent base for the couple.

Richard Fitzwilliams has ruled this out, believing the European home is not a permanent replacement for their Montecito mansion.